Friday, October 10, 2008

Calcium

You have more calcium in your body than any other mineral. Calcium has many important jobs. The body stores more than 99 percent of its calcium in the bones and teeth to help make and keep them strong. The rest is throughout the body in blood, muscle and the fluid between cells. Your body needs calcium to help muscles and blood vessels contract and expand, to secrete hormones and enzymes and to send messages through the nervous system.

It is important to get plenty of calcium in the foods you eat. Foods rich in calcium include diary products such as milk, cheese and yogurt, and leafy, green vegetables. The exact amount of calcium you need depends on your age and other factors. Growing children and teenagers need more calcium than young adults. Older women need plenty of calcium to prevent osteoporosis. People who do not eat enough high-calcium foods should take a calcium supplement.

Thursday, October 2, 2008

Caffeine

Caffeine is a bitter substance found in coffee, tea, soft drinks, chocolate, some nuts and certain medicines. It has many effects on the body's metabolism, including stimulating the central nervous system. This can make you more alert and give you a boost of energy.


For most people, the amount of caffeine in two to four cups of coffee a day is not harmful. However, too much caffeine can make you restless, anxious and irritable. It may also keep you from sleeping well and cause headaches, abnormal heart rhythms or other problems. If you stop using caffeine, you could get withdrawal symptoms.


Some people are more sensitive to the effects of caffeine than others. They should limit their use of caffeine. So should pregnant and nursing women. Certain drugs and supplements may interact with caffeine. If you have questions about whether caffeine is safe for you, talk with your health care provider.

Friday, September 19, 2008

Coronary Artery Disease

Coronary artery disease is the most ordinary type of heart illness. It is the leading cause of loss in the United States in together men and women.


CAD happens when the arteries that provide blood to heart muscle become hard-bitten and narrowed. This is due to the buildup of cholesterol and other material, called plaque, on their inner walls. As the buildup grows, less blood can flow during the arteries. As a result, the heart muscle can't get the blood or oxygen it needs. This can lead to chest pain or a heart assault. Most heart attacks come about when a blood clot suddenly cuts off the hearts' blood supply, causing enduring heart damage.


Over time, CAD can also weaken the heart muscle and add to heart failure and arrhythmias. Heart failure income the heart can't pump blood well to the rest of the body. Arrhythmias are change in the usual beating rhythm of the heart.

Thursday, September 11, 2008

Coronary Artery Bypass Surgery

If you have coronary artery disease (CAD), the artery that supply blood and oxygen to the heart muscle become toughened and narrowed. If way of life change and medicines don't help, your doctor may advise coronary artery bypass surgery.

The surgery uses a part of a vein from the leg or vein from the chest or wrist. The surgeon attach this to the coronary artery above and below the pointed area or blockage. This allows blood to bypass the blockage. Some people need additional than one bypass.

You may need bypass surgery for a variety of reasons. Another procedure for CAD, angioplasty, may not have widen the artery enough. In some cases, the angioplasty tube can't reach the obstruction.

A bypass too can close again. This happens in additional than 10 percent of bypass surgeries, typically after 10 or more years.

Thursday, August 28, 2008

Clostridium Difficile Infections

Clostridium difficile (C. difficile) is a bacterium that causes diarrhea and more serious intestinal conditions such as colitis. Symptoms include

* Watery diarrhea (at least three bowel movements per day for two or more days)
* Fever
* Loss of appetite
* Nausea
* Abdominal pain or tenderness

People in good health usually don’t get C. difficile disease. You might get the disease if you have an illness that requires prolonged use of antibiotics. Increasingly, the disease can also be spread in the hospital. The elderly are also at risk. Treatment is with antibiotics.

Thursday, August 21, 2008

Cesarean Section

A Cesarean section is surgical procedure to bring a baby. The baby is taken out during the mother's abdomen. In the United States, concerning one in four women have their babies this way. Most C-sections are done when unforeseen problems happen during delivery. These include

* Health harms in the mother

* The point of the baby

* Not sufficient room for the baby to go through the vagina

* Signs of pain in the baby

C-sections are also more ordinary among women carrying more than one baby.

The surgery is fairly safe for mother and baby. Still, it is major surgery and carries risks. It also takes longer to get well from a C-section than from vaginal birth. After healing, the opening may leave a weak spot in the wall of the uterus. This could cause evils with an attempted vaginal birth later. However, more than half of women who have a C-section can give vaginal birth later on.

Thursday, August 7, 2008

Music

Music is an art form that involves organized sounds and quiet. It is articulated in terms of pitch (which includes melody and harmony), rhythm (which includes tempo and meter), and the quality of sound (which includes timbre, articulation, dynamics, and texture).Music may also absorb generative forms in time through the construction of patterns and combinations of natural stimuli, principally sound. Music may be used for artistic or aesthetic, communicative, entertainment, traditional or religious purposes. The definition of what constitutes music varies according to culture and social context, with assorted interpretations of the term being established under sub-genres of the art. Within "the arts", music can be classified as a performing art, a fine art, or an auditory art form.

The history of music predates the written word and is tied to the enlargement of each unique human culture. The development of music among humans occurred against the backdrop of natural sounds such as birdsong and the sounds other animals use to communicate. primeval music, once more commonly called primitive music, is the name given to all music created in preliterate cultures (prehistory), beginning somewhere in very late geological history.